[daitrong]

NGUyEN! or whoever has experiece with 07's

A friend gave me a pair of CDT 07's midbass drivers for my b-day. Since i have it, i might as well put it to good use. lol In Nguyen's recent review the cdt's are very comparable to the G18's in midrange clarity and dynamics...but lack the G18's low end. I won't be using this driver as a Midbass but more of a midrange. :shock: in kicks. :shock: :shock: These drivers are meant for IB use in doors but i already have teh Seas w18 in the doors. Nguyen since you tested these babies out, how high would you cross these babies in kicks? I know kicks aren't what these speakers are meant for and air space would be a big determining factor. BUT! would i be ok just using them as a dedicated midrange? Say 200hz to 4khz? HOw much air space would be needed? .5cuft per stuffed with polyfill and sealed off be enough? ..or the only way to go is porting to outside of the vehicle? ( i really don't want to do this )

SOrry for all the questions but CDT doesn't list specs for sealed enclosures.

 

[daitrong]

yes i have the w18s. i really don't want to play the lcy's down that low. I actually prefer the top end of the lcy more than it's midrange. Plus it's hard as heck to get good centered imaging if the lcy played down that low / w18 that high as well. or is it just me? did you have better results with a 2 way vinh?

 

[daitrong]

i agree on the w18 comment though.. first impression on build quality, the w18 seems to be in an entirely different league.

 

[daitrong]

Thanks for the comment newtitan.. according to don, he states" that 7 is flat like a flat chested 4 year old ...to about 8k i believe" Anyone has graphs of these babie?

 

[daitrong]

no, i'm located in Riverside right now...but my parent's house is in Orange County though. When the car's finally done i'll come down and hit you guys up =]

Btw, the dash cover for the Is300 came in.. looks pretty nice. Not worth the 40 bucks though, maybe more like 20-25 ish.

 

[daitrong]

the passenger side won't be much of a problem getting .5cuft. THe driver side the kicks will extend down quite a bit for it to be .5cuft. So what's your opinion on it?

 

[daitrong]

i'm aware of that man! Sheesh. I didn't ask for any rude remarks. Just will it work? and if so what are the trade offs that you can think of...

 

[daitrong]

It's all good man, no harm done. i think the heat has been getting to all of us. lol

I have this all out crazy idea to get the kicks to be about .5 cubes.. or at least around .4 cubes.


xover points won't be concrete until i get them in of course. but they'll be strictly midrange duties.. 200hz / 2rd order if i can pull it off or 315 hz 3rd order. ... up to 4khz ish. Crossing the ribbons low just totally messes up imaging ( or maybe you had better results vinh? ) since they have such a wide dispersion.

I love the topend more then the midrange of LCY 130 ribbons. . I guess i like more *full bodied vocals vs. light and pretty. I've used CDT before and wish it was just a bit more detailed. According to the testimonials the 07 mid driver has the body and umph along with the detail known to the seas. Ideally a 4 inch driver would be easier to implement but i 07 was given as a very nice gesture ot me. I can't sell it since i got it as a gift... that would be disrepectful no? lol

Plus the fact that i've always wanted to try an oversized midrange in kicks.

 

[daitrong]

I get what you're trying to say. When i had some morel WR4's in the kick location along with the Lcy's ... playing from 300- 2.0 khz, the vocals seemed really diffused and not smack dab centered. The vocals would shift slightly from track to track. but once i moved the xover points up to 3.5 - 4 khz the vocals seemed more centered and easily localized. I'm not exactly sure why but i believe it's due to the wide dispersion of the LCY's... it'll be hard imo to get good midrange imaging with that driver. One thing i like to mention is at that time i didn't have underdash panels to stop reflection so that has to be taken in to consideration. Anyway , if you figure out a niffy way to solve this problem when you fiddle with your 2 way... let me know =]

I'm going more of a simple amplifier set up this time around and don't want to purchase another amplifier. =] And i don't believe the tubes will give me the *warmer realistic sound i want. I've auditioned a few tubes at Beach Auto Sound and imo, it didn't warm up the sound all that much. Right now i'm trying to get the set up sounding as great as possible with as little eqing as possible.

 

[daitrong]

Here's my take on it.

First, as a sole midrange, you won't neeed the bottom end, which means .5cube won't be needed.

Second, why not go for a pure midrange? maybe the older seas m15ch in kicks?

although I've yet to try out the lcy, but the horn loaded (perse) lcy130 seems to do okay down low and would be a perfect mate for you w18, why not?

ds-21,
ouch!!!
i don't hear the *warmth* in tubes in the 4khz, anybody else does?

Thanks SQKEV, that's what i was hoping. I won't be crossing it that low so the bottom end won't be needed with this driver. What do you think the minimum size i can get away with btw? also, would the midrange sound a bit *congested with that specific volume?

imo, i think it would be disrepectful for me to sell it without even try to put them in and use them. Who knows it might turn out pretty nice. If not then i'll sell them and try something else.